III Diving with Aladin
®
Pro
33
III
4 Functions during the Dive
4.4 Ascent rate Optimal ascent rate varies between 7 and 20 m/min dependent on the depth. It is
displayed in percent of the set value. If the ascent rate is bigger than 100% of the
set value, the black arrow <SLOW> appears. If the ascent rate exceeds 140%, the
arrow starts flashing.
An acoustic alarm occurs from 110%, its intensity depending on the measure of
excess.
– The prescribed ascent rate has to be observed. Excessive ascent rate can lead
to microbubbles in the arterial circulation.
– It is possible that Aladin
®
Pro demands a decompression stop within the no-
stop phase because of the danger of the formation of microbubbles.
– Decompression time necessary for the prevention of microbubbles can increase
massively, if the ascent rate is exceeded.
– From great depth, too slow an ascent causes super-saturation of tissues and
an extension of decompression time and total ascent time. From little depth,
shortening of decompression times is possible because the tissues already
start desaturating during the ascent.
NO STOP
S
L
O
W
SPEED
%
depth dive time
max. depth deco info
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